Innnovative ideas and big money are a powerful combination--and the sums now moving in a green direction are eye-popping. Global investment in new energy technologies is estimated at $71 billion in 2006, up 43% from the previous year. Both in China and the United States, "clean technology" is now the third largest sector for venture capital investment. More momentous still are innovations such as China's new renewable energy law and Europe's carbon emmissions system, which ensure that these kinds of investments will continue to flow for many years to come.